Shadowcash is interesting in the "Monero type" space. The wallet and tech are impressive. I imagine Monero will do better since it seems to be backed by Poloniex. Anybody's guess at this point. I am new to Steem, like in the past week. I am definitely adding it to my portfolio and trying to get involved here. :)
RE: Invest: A balanced portfolio of crypto coins: Steem Bitcoin Truckcoin Litecoin Ripple Ethereum Classic Ethereum